package com.shunhao.widgets.progress.smoothprogressbar;

import android.graphics.drawable.Drawable;
import android.graphics.drawable.ShapeDrawable;

/**
 * Created by castorflex on 3/5/14.
 *
 * @author kang gui yang
 */
public final class SmoothProgressBarUtils {
    private SmoothProgressBarUtils() {
    }

    public static Drawable generateDrawableWithColors(int[] colors, float strokeWidth) {
        if (colors == null || colors.length == 0) {
            return null;
        }

        return new ShapeDrawable(new ColorsShape(strokeWidth, colors));
    }

    static void checkSpeed(float speed) {
        if (speed <= 0f) {
            throw new IllegalArgumentException("Speed must be >= 0");
        }
    }

    public static void checkColors(int[] colors) {
        if (colors == null || colors.length == 0) {
            throw new IllegalArgumentException("You must provide at least 1 color");
        }
    }

    static void checkAngle(int angle) {
        if (angle < 0 || angle > 360) {
            throw new IllegalArgumentException(String.format("Illegal angle %d: must be >=0 and <= 360", angle));
        }
    }

    static void checkPositiveOrZero(float number, String name) {
        if (number < 0) {
            throw new IllegalArgumentException(String.format("%s %d must be positive", name, number));
        }
    }

    static void checkPositive(int number, String name) {
        if (number <= 0) {
            throw new IllegalArgumentException(String.format("%s must not be null", name));
        }
    }

    static void checkNotNull(Object o, String name) {
        if (o == null) {
            throw new IllegalArgumentException(String.format("%s must be not null", name));
        }
    }
}
